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    POPPET VALVE AND METHOD FOR MANUFACTURING SAME
    2.
    发明授权
    POPPET VALVE AND METHOD FOR MANUFACTURING SAME 有权
    弹簧阀门及其制造方法

    公开(公告)号：EP3088776B1

    公开(公告)日：2018-03-07

    申请号：EP14896279.8

    申请日：2014-08-27

    申请人： Nittan Valve Co., Ltd.

    发明人： MIKAMI, Maiku ,  KURAHASHI, Kazunori

    IPC分类号： F16K1/36 ,  B21K1/24 ,  C22F1/00 ,  C22F1/10 ,  F01L3/20 ,  B21K1/22 ,  B23P15/00 ,  F01L3/02

    CPC分类号： F01L3/20 ,  B21K1/22 ,  B23P15/002 ,  C21D7/02 ,  C21D7/13 ,  C21D9/0068 ,  F01L3/02 ,  F01L2103/00 ,  F01L2103/01 ,  F01L2820/02

    摘要： [Abstract] Stiffness strength of a seat surface in a poppet valve produced by forging is made to be more uniform. [Problem] [Solution] There is provided a method for manufacturing a poppet valve 10, in which a valve head 14 having a seat surface N is provided in one end of a valve stem 12 in a longitudinal direction, by forging, wherein an intermediate valve head 14' in a intermediate valve products 10' is provided with a pressing protrusions 15 in a region serving as the seat surface N after forging, the pressing protrusions 15 having a peak 15a positioned in a normal direction K2 of the seat surface N on a basis of the seat surface N of the forged valve head 14, in a sectional view the peak 15a of the pressing protrusions 15 is positioned on a normal line K2 passing a reference point P3 set on a virtual line (line segment K) connecting a base point P1 in an inner diameter side and a base point P2 in an outer diameter side of the seat surface N, and as viewed in a center axis X1 direction of the valve stem 12, a position of the reference point P3 is set such that a relation between a length L1 from the base point P1 in the inner diameter side to the reference point P3 and a length L2 from the base point P2 in the outer diameter side to the reference point P3 meets a formula of L1/L2 ‰¤ 0.5.

    POPPET VALVE
    4.
    发明公开
    POPPET VALVE 审中-公开

    公开(公告)号：EP3106634A4

    公开(公告)日：2017-11-29

    申请号：EP14882206

    申请日：2014-02-12

    申请人： NITTAN VALVA

    发明人： KURAHASHI KAZUNORI ,  TAKAHASHI YOSHIHIRO

    IPC分类号： F01L3/20 ,  F01L3/02 ,  F01L3/04

    CPC分类号： F01L3/04 ,  F01L3/02 ,  F01L3/12 ,  F01L3/20

    摘要： Provided is a poppet valve capable of realizing maximum combustion efficiency by insulating all of three heat transfer forms. In a poppet valve including a head portion (14) formed integrally with one end side of a stem portion (12), in the head portion (14), a hollow portion (19) extending along a head surface (24) is formed, a metal layer (17) that insulates radiation heat is formed on a upper end surface (25) of the hollow portion (19), and a heat insulating portion is formed between the metal layer (17) and a bottom surface of the hollow portion (19). Among the heat transfer forms, conduction and convection are insulated by the heat insulating portion, and radiation is insulated by the metal layer (17).

    HOLLOW POPPET VALVE
    6.
    发明公开
    HOLLOW POPPET VALVE 有权

    公开(公告)号：EP3106633A4

    公开(公告)日：2017-10-11

    申请号：EP14881411

    申请日：2014-02-10

    申请人： NITTAN VALVA

    发明人： TSUNEISHI OSAMU ,  INOUE MASAAKI

    IPC分类号： F01L3/20 ,  B21K1/22 ,  B23P15/00 ,  F01L3/02 ,  F01L3/04 ,  F01L3/14 ,  F16K27/02 ,  F16K49/00

    CPC分类号： F01L3/14 ,  B21K1/22 ,  B23P15/002 ,  F01L3/02 ,  F01L3/04 ,  F16K27/0209 ,  F16K49/00

    摘要： With a poppet valve using a coolant, maximum combustion efficiency is realized by adjusting relative values of a heat insulation effect and a heat dissipation effect. From the inside of a head portion (14) to a stem portion (12) of a hollow poppet valve (10), a heat insulating space (S1) and a cooling portion (S2) loaded with a coolant (19), separated from each other by a partition (15), are formed. By properlysetting an installation position and a vertical length of the partition (15) according to a type of vehicle for which the valve is used, appropriate heat insulation effect and heat dissipation effect are obtained. Further, by the partition (15), mechanical or thermal strength of the poppet valve in which the heat insulating space (S1) and the cooling portion (S2) are formed is increased.

    LASER BUILD-UP METHOD
    9.
    发明公开
    LASER BUILD-UP METHOD 有权
    LASERAUFTRAGVERFAHREN

    公开(公告)号：EP3117952A1

    公开(公告)日：2017-01-18

    申请号：EP16173757.2

    申请日：2016-06-09

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： EDA, Akinori ,  TESHIMA, Hideki

    IPC分类号： B23K26/34 ,  F01L3/04 ,  B23K26/142

    CPC分类号： B23K26/342 ,  B23K26/142 ,  B23K26/144 ,  B23K26/146 ,  B23K26/34 ,  F01L3/02 ,  F01L3/04 ,  F01L2103/00

    摘要： A laser build-up method according to an embodiment includes the processes of: forming an annular counter sunk groove 15 in an edge of an opening of a port on a side of a combustion chamber; and irradiating a laser beam 30 while a metallic powder 26 is being supplied to the counter sunk groove 15 and successively forming a cladding layer 16 for a valve seat, in which: the cladding layer 16 is formed while a seal gas 24 is being sprayed onto a melt pool 31, the cladding layer 16 includes a starting end part 17a, a part formed just after the starting end part is formed 18a, an intermediate part 18b, a part formed just before a terminating end part is formed 18c, and a terminating end part 17b, which are formed in this order.

    摘要翻译： 根据实施例的激光积聚方法包括以下处理：在燃烧室侧的端口的开口的边缘处形成环形的对置凹槽15; 并且在将金属粉末26供给到防沉槽15的同时照射激光束30，并且依次形成用于阀座的包覆层16，其中：形成包层16，同时将密封气体24喷射到 熔池31，包层16包括起始端部17a，刚好在起始端部之后形成的部分18a，中间部分18b，刚好形成在终端部分之前的部分18c，并且终止 端部17b，其以该顺序形成。

    POPPET VALVE
    10.
    发明公开
    POPPET VALVE 审中-公开
    KEGELVENTIL

    公开(公告)号：EP3106634A1

    公开(公告)日：2016-12-21

    申请号：EP14882206.7

    申请日：2014-02-12

    申请人： Nittan Valve Co., Ltd.

    发明人： KURAHASHI Kazunori ,  TAKAHASHI Yoshihiro

    IPC分类号： F01L3/20 ,  F01L3/02 ,  F01L3/04

    CPC分类号： F01L3/04 ,  F01L3/02 ,  F01L3/12 ,  F01L3/20

    摘要： Provided is a poppet valve capable of realizing maximum combustion efficiency by insulating all of three heat transfer forms. In a poppet valve including a head portion (14) formed integrally with one end side of a stem portion (12), in the head portion (14), a hollow portion (19) extending along a head surface (24) is formed, a metal layer (17) that insulates radiation heat is formed on a upper end surface (25) of the hollow portion (19), and a heat insulating portion is formed between the metal layer (17) and a bottom surface of the hollow portion (19). Among the heat transfer forms, conduction and convection are insulated by the heat insulating portion, and radiation is insulated by the metal layer (17).

    摘要翻译： 提供一种能够通过绝热所有三种传热形式来实现最大燃烧效率的提升阀。 在具有与杆部（12）的一端侧一体形成的头部（14）的提升阀中，在头部（14）中形成有沿头表面（24）延伸的中空部（19） 在中空部分（19）的上端面（25）上形成绝缘辐射热的金属层（17），并且在金属层（17）和中空部分的底面之间形成绝热部分 （19）。 在传热形式中，传导和对流由绝热部分绝缘，辐射由金属层（17）绝缘。